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. , , , . , , .
, , American Journal of Preventive Medicine . 54 2002 2011 .
, 60% . , 2 , 2,3% ...

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4%

22-09-2016, 15:01
:     4%

: 4%

22-09-2016, 14:31
     4%

4%

22-09-2016, 12:54
:       10

: 10

24-07-2016, 09:59
 ,

,

30-03-2016, 21:57

24-03-2016, 13:51


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